Malicious PDF — malware analysis report

Static analysis result for SHA-256 e34ae13dfe66236f…

MALICIOUS

PDF

45.9 KB Created: 2020-08-12 16:39:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1dd7099446334da63fd5785acaaeb7c2 SHA-1: 9b75884fd707079c1e0d4d4a2f9c2e30e86049c9 SHA-256: e34ae13dfe66236f218d84d85f9a384ebfb003bb90d8667a3ac3485491e41b0d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass external link farm, with many links pointing to Shopify-hosted PDFs. One critical heuristic identified a link to a known malicious redirector infrastructure at `https://ttraff.ru/pify?keyword=pulsar+135+parts+pdf`. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the same malicious redirector URL and several benign-looking Shopify URLs, suggesting a lure to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=pulsar+135+parts+pdf In PDF document text
    • http://files.chenale-extensionsllc.com/uploads/1/3/2/6/132695644/1551419.pdfIn PDF document text
    • http://files.philstopford.com/uploads/1/3/0/8/130814601/4535536.pdfIn PDF document text
    • http://files.acblunit234.org/uploads/1/3/0/9/130969474/4a6051c.pdfIn PDF document text
    • http://pipotek.terrifraserstudio.com/uploads/1/3/0/7/130775422/pomobebeniref.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lawup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2137/5400/files/brainstorming_ideas_for_writing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8768/1954/files/26507427494.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7192/1571/files/xelazalito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8658/5749/files/xowukevedumuparitadubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4774/6721/files/jikufamubupader.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/aetna_choice_pos_ii_plan_coverage_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8307/0629/files/austerity_measures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8993/5002/files/3481268423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0299/4586/files/undo_a_push_to_master.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5308/7905/files/98240880734.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
🗂 Part of campaign: chenale-extensionsllc.com 3 samples

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68D0 5376 bytes
SHA-256: fc283c079482e9f2900db86d165594f3a2e350ec624143b45fdb33f102c33c46
font_01_sfnt_off00007b26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B26 15768 bytes
SHA-256: a7d6c316bce7040b1dc2dfbc2f425f0a8cb2834ba29f69612e99c97a9c491a66

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